Brick or block paving machine



Feb. 9 1926.

Filed Dec. 25, 1921 5 Sheets-Sheet 2 QN NN mw. 3 @El N @nl m nw uw M am qm m 6 E W mm 1 m A TTORNEY5.

1f"e1.9,192s.v 1,572,188

, M. E.fCROWELL BRICK OR BLOCK PAVING MACHINE l F'i'led Dec. 23, 1921 5 Sheets-Sheet 3 I l l s MJ '5 m5 IZ@ lZb Ho Il! zu ,ls l I I I 1N TOR s /09 2/ 1/5 4 Maw/f dzon/ELL. ,Z8 [07 236 By V ma 233 232 g u ATTORNEYS. i

Feb. 9 1926. 1,572,188

M. E. CROWELL BRICK OR BLOCK PAVING MACHINE Filed Dec. 25, 1921 5 Sheets-Sheet 5 8o 46 34 Hq 7 f ,/af 45 -58 107 l08 //Z 87 42 /17 IU 47 113 a4 /zo s, 85

H8 z8 "o I' [09 4l/ a9 "f '90 1:3 /sz 115 a4- INVENTOR.

I www A TTORNEYS,

Patented Feb. 9, 1926.

UNITED STATES MELVN E. COVELL, OF FRANKLIN, INDIANA.

Baron on stock ravine MACHINE.

Application led December 23, 1921. Serial No. 524,437.

To ZZ whom v' may concern Be it known that l, ll/LemiN E. CnoWnLL, a citizen of the United States, and a resident of Franklin, county of Johnson, and 'itatc of Indiana, have invented a. certain new and useful Brick or Block Paving lllfachine; and l' do hereby declare that the followingv is a full, clear, and exact description thereof, reference being had to the accompanying drawings. in which like numerals refer to like parts.

This invention relates to a machine for handling and laying` bricks, blocks or the like, and is primarily used in buildingl street surfaces, roadways and the like by handling the brick or blocks and positioiiing` the same upon aI prepared road-bed to form a roadway.

rlhe chief feature of the invention consists in the several mechanisms Which are associated together to position'the brick in pavementforming relation With respect to other' bricks and to secure the same in said position to form a pavement.

Another feature of the invention is the provision of means for presenting the brick to the aforesaid mechanisms in a predetermined position.

Still a further feature of the invention the provision of other means which are adapted to prepare the road-bed for the reception of the bricks, etc.

Still a further feature of the invention is tho provision of means for treating the exposed pavement surfaces after the brickf-i have formed the same. V

Linother prime feature of the invention is the association of the several mechanisms so that the machine will move along` the roadway as the same is being built by said machine and the aforesaid movement is se cured in conjunction with the tamping' of the bricks .into pavement-ibrming position.

Before proceeding' to a detailed descrip tion of the drawings and the parts illustra-t.-V

ed therein, the sequence of operation will be briefly outlined. The several bricks are presented or placed upon a receiving' platform. Herein the manual placing of the brick upon the platforn'i is contenmlated, although a suitable magazine feed may be associated therewith. The bricks are removed from the platform by a tiltinp device which operates in timed relation with other mechanisms of the machine and preclaims.

sents the bricks which form a row or a portion of a row of bricks in the` pavement in such a manner to a conveyor'that all of the bricks are received by suitable receiving means in a predetermined position. Other means thereupon in timed relation with the aforesaid means takes the bricks from the receiving means, transports the same to the road-bed and deposits them thereon in a pavement-forming position. rlihereupon other means engage the bricks to exert. a lateral pressure thereupon, and in said engagement the machine is moved forwardly and the Weight of the machine engages the bricks just `deposited to exert down` ward pressurethereon and embed the bricks in the road-bed. with the last-mentioned movements, the before-mentioned brick transporting` means is positioned preparatory to receiving` another rowof bricks, and after receiving the same the Weioht of said bricks u; on theV transporting means assists the power means in exerting lateral pressure upon the bricks in the pavement-forming position, as Well as assists in the movement ofthe machine forward upon the pavement. Simultaneously with all of the aforesaid operations, it will be understood that suitable brake means are` associated with the frame supporting` Wheels so that said wheels are free to 'move at the desired time. Other means are associatd with the machine, such as thenieans for leveling` the cushion layer which usually consists of sand upon the road-bed- Likewise, the lateral pressure applying' means is adapted to discharge a cen'ientitious or oth-V cr saiitable'binding` mixture upon the cushion layer, and there are other means for supplying' a cementitious or other suitable surface material to the surface of the pavement after the bricks have been laid, and still other means are associated with all ot' the foregoing for supplying avatar to the pavement to Wet the saine and thc sur material applied thereto. The machine is so constructed that the bricks Will be laid to Simultaneously forni a crowned roadway in which the The full nature of the invention Will be understood from the accompanying; drawings and the following vdescription and In the drawings, Fig. 1 isa top plan View of the machine. Fig. 2 is a front elevational view of the machine.` Fig. 3is a side elevational view taken upon the right side of the machine. Fig. i is a sectional View showing the brick recewing means, the lateral pressure means and the downward pressure means with both' pressure means inthe non-pressing position. Fig. 5 is a similar View of the same parts shown in Fig. a with Athe brick transporting means in an intermediate brick transporting position, and the lateral and downward pressure means exerting pressure in both directions. Fig. (3 is a similar view of the same parts with the brick transporting means in position preparatory to depositing the brick, and the lateral pressure' means retracted. Fig. j? is a similar View of the saine parts shown inFigs. fl, 5 and G with-the brick transporting means in the depositing position, the lateral pressure means in the retracted position and the downward pressure means in the pressing position. Fig. 8' is a similar View of some of thev parts shown in Figs. hl, 5, G and T, and illustrates said lateral pressure means and downward pressure means in the rnon-pressing position, but the brick inpavement-forming position. Fig. 9 is a view similar to Fig. S but illustrates both pressure means in the pressure applying position and the brake means in non-braking position so that the machine will be moved as a unit by means of the lateral pressure iipplying means," Fig. 10 is an elevational riew of a portionof the parts shown in Fig. 2 and illustrates said parts in a different position. Fig. 11 is an .elevational view of the parts shown in Fig. 10 and illustrates said parts in an intermediate position from that shown in Figs. 2 and 10. Fig. 12 is an enlarged elevational view of the'mechanism for taking up the slack in a row of bricks preparatory1 to their reception by the transporting means, the same parts being illustrated in Fig. 3 in connection with the remaiiuler of the machine. Fig. 13 is a similar view of the same parts shown in Fig. 12, but

shows said parts inthe pressure applying or slack eliminating position. Fig. 1-l; is a plan view with parts in section of the parts illustrated in Figs. 12 and 13.

ln vthe drawings indicates Athe supporting earth upon which is placed or formed a road-bed 21. Atboth sides of the road-bed 21 is a trackway 22 supporting a track herein shown in the form of a channel Illhe tiackway 22 and channel 23 are laid to the grade at which the road is to be made, or to-*which the road is to conform. Herein a unitary form of vthe machine Yis illustrated, but in the actual construction of the machine, it is contemplated that the same will be constructed in units which may be secured together so that the tion so that intermediate sections may ber interposed therebetween.

is herein illustrated, the machine includes a pair of supporting channels 24 which adjustably support the wheels 25 by means of the adjusting screw 26 and the pivotally supported arm 27. vThe wheels 25 ride upon the track 23 and4 thus the machine will be supported at thedesired e'evation to form a 'roadway which will conform to the desired grade. 'lhe main frame channels 21 are connected together at suitable intero/'als by'transverse connecting bars 2S, 29 and 30. Also supported by the framework herein described is a pair of standards 31 and 32 at each side of said framework. LSuitable intermediate standards 33 may be supported by said frainewoik where necessary. The standards 31 and 32 are connected by a cross member 34,y and the upwardly7 extending frames formed by the standards 3l, and 34 are connected together by a suitable number of cross members, and herein two transverse bars and 36 as shown, see Fig. 1. Suitably supported by the aforesaid framework is a platform 37 which supports a power unit herein illustrated in the form of an internal combustion engine having the power belt 39'. The power unit 3S may be suitably connected to one or more of the supporting wheels 2o for propelling the machine into position if the same is desired. However, the aforesaid connection is not illustrated in the present dawings.

Suitably mounted in bearingsupon the upper framework comprising the supportingI members 3st-, 35 and 3G is a main power shaft construction l0 which is adapted to be driven by the belt 3S). Said driving connection is adapted to be controlled by a suitable belt shifter or equivalent clutch mechanism all. A second shaft 42 parallel to the main shaft et() is rotatably supported in the framework of the machine near the base portion thereof, and said shaft e2 preferably extends through the channels 2t, as illustrated in Fig. 1. A pair of shafts are rotatably supported at the sides of the machine and saidv last mentioned shafts eX'- tend transversely of the beforementioned shafts and are adapted to be driven bythe shaft Said shafts are indicated by the numeral 43. At each side of the machine there is also rotatably supported a vertical shaft indicated by the numeral 44, see Figs. 1 and 2. QThe shaft 44 is driven by the shaft Ll() although it is to be understood that the aforesaid driving connections may be modified as desired.

Herein the shaft Ll2 is driven by the shaft Ll() through the medium of the endless chain L1:5 and the sprocket Wheels i6 and 1li' upon the shafts d() and 4t2 respectively. The shaft i423 is driven by the shaft 42 through a pair of bevel gears i8 and the shaft le is driven by` the shaft d() through the bevel `gears 429. rny other desired connection, however7 may be utilized.

Bric/.i tilting ma? volerci/ng mechanism.

Reference will now Je had particularly to Figs. 1, 2, ,0 and 1l wherein the brick tilting' and brick conveying mechanisms are illuf-:trated in detail. A. suitable auxiliary frame is suitably secured to the main frame and rotatably supports a shaft 51 Vwhich carries a plurality of sets of radially extending prongs or teeth 52 to form a plural spider construction. Herein said spiders are positioned upon said shaft such that 'the prongs or teeth engage simultaneously the entire row of bricks and two of the teeth of each spider engage each single brick. Herein said spiders are positioned upon said shaft such that tvvo or more of the spiders are adapted to engage a single brick. A platform 52 is suitably slotted at to permit the teeth 52 to pass Without interference. The platform is also provided with a plurality of 1guides 54 which herein are so positioned that thev areadapted to receive a single brick.- rlhe Aforward end portion of the platform is provided With a jjilurality of slots 53 and the shaft 51 is pro vided with a plurality of radially extendinfr teeth 52, so that the' tilting mechanism is adapted to engage and tilt a half' brick or bat. The means for actuating the shaft 51 comprises a cam pin 55 carried by a collar 5G upon the forward end of the shaft f-l. ll'xf'otally supported upon the frame 50 and adjacent. the shaft 43 is a cam yoke 5T which pivotally supports a reciprocating' arm 5S having` a tooth 59 at the end thereof.

The shafty 51 on its forward end is provided with a ratchet Wheel having1 the teeth 61, 1which teeth are engageable by the tooth 59 of the reciprocatinzgr rod or arm 58. Suitu able means, such as the spring 62, maintains the arm and tooth vin engagement With the ratchet Wheel 60. A yielding` dog` 63 prevents reverse rotational movement of the ratchet wheel GO. As shown clearly on Sheet 2 in Figs. 10 and 11, the aforesaid mecha nisin adapted to transform rotational movement of the shaft 48 into intermittent rotational movement of the shaft 51 carrying; the radial teeth 52. are shown positioned at degrees to each other. and. therefore. are adapted to engage two adj acont sides of a brick 64.

Reference will non7 be had to Fig. "1 wherein the conveyor is illustrated in detail. Suit-ablymounted on the frame 50 is Herein the teeth 52 a snpportingl member G5avhich pivotally supports a. plurality ot supporting rollers (Se. The rollers, as shown in Fig. 27 are in-` supported by the main frame is a stub shaftV T0. '.lhestub shaft T0 carries a sprocket Wheel 71. '.lhc gear (iflis the power gearl and derives its power from the shaft 1li. A suitable endless link chain construction A72 is adapted to be driven by the sprocket wheel (5) and also ride upon the sprocket pinions (SS and 71. The' endless chain carries a plurality of brick eiigiugiiig` tins or fingers 73 and these are so positioned upon the chain that a pair of them are adapted to receive a single brick. The chain conveyor' herein de-V scribed is operated in timed relation with the tilting' tilted on the lrollers 66 are positioned between the fins so that said tins more the bricks with the endless chain from the' rollers to a rotating table or platform 74. also carried by the shaft dei. The bricks are prevented from discharging` from the table exceptin the desired direction bv an arcuate guard plate 75. V

Brick receiving and zfrfi'n-aporfe'nf/ mec/iam'sm. Y

The machine frame supports `a.trant-verse supporting member .76 and also a transverrfe guide member 7i. Suitably and pifvotally supported upon the transverse supporting'yr member 76 are a. plurality of brick supporting` rollers 78, which rollers extend outwardly from said supporting member and are in spaced relation with each other and in such spaced relation that at least three of said rollers iiicliule the length of one brick. J r lhe aforesaid roller support is herein termed the receivingi mechanism. y

Reference will now be had to lfiifs. l. 2 and 4t for a. detailed descrij'ition of the brick transporting means and thereafter reference will be had to Figs. lato 7 inclusiveto illustrate the different positionsassumed by the brick transporting mechanism. lit will be ren'iembered that l() de natos the main `shaft generally, and as shown clearly inl Fins. 1 and 2.. said main shaft fl() a died shaft; and at each division thereof is secured a. pair of crank arms 8() which carry a pin 8l. 'l` he crank pin Si siniports a cable or chain 82 having` a turn` buckle or equivalent device S3 included therein for adjusting); purposes.' The cables 82 support. a rod 841-, which in turn supports a plurality of U-sha )ed brick en'aoino and transiort-Q l. o 23 t; l

spider so that the bricks when ine' lingers 85. These lingers are ria-idly but adjustably secured upon the tra1isi'e.,.i rod Si by any suitable means, such as the set screws S6. As shown clearly iu Fig. 2, the fingers Saare secured to said rod 81 in spaced relation with each other, and so spaced as to pass between. the rollers 78 so that the tin ers when positioned beneath the bricks 6ft, ee Fie'. s., may thereafter be elevated into a position intermediate that illustrated in Figs. 4t andy Vif hen in sai-d elevated position, continued rotation of the crank construction moves the rod Si and also the brickssupported thereby laterally of the receiving* platform construction into the position shown in Fie'. 5. Suitably supported upon the framework is a slotted guide member 3T. and adjacent the base of the slot is pivotally supported an idler wheel 8S. The cable 82 engages the wheel S8, see Fig. 5. and continued rota-tional movement of the crank construction lowers the .fingers with the bricks thereon, sec Fics and 6. One or more of they lingers 85 carries a tilting` cam projection 89, see Figi n, which engages in the downward movement of the fingers ,aro-overl cam slide which terminates near the free end thereof in a' recess 90, see

Fig. 6, and said recess is adapted to receive the projection S9, as shown clearly in Figs. 6 and 7.- Continued rotational movement of the cra-nk arms from the position shown in Fig. 6 to the position shown in Fie'. '7 causes the fingers to be. tilted. as shown in Fig. 7 to deposit the brick in pavementforming position. Thereafter continued rotation of the crank arms causes said finger construction to move from the position shown in Fig. 7 to the position shown in Fig'. 4 preparatory to removing another brick or row of bricks from the receiving' mechanism.

Y Siae-7c arresti/ng m e071 (mism.

Reference will now be had to Figs. 3, 12, 13 and 14 wherein there is illustrated means for taking up the slack among the bricks as they are positioned upon the receivingmechanism hereinbefore described. Suitably secured upon the'conv'eyor or chain 72, see Figs. 1 and 3, is a proj ectiirgv cam p1n.91, and it will be understood that said proj ecting cam pin may be adjustably positioned vupon the conif'eyine' chain 72 adjacent the last brick conveying' finger 'or fin 73. Thus after all of the bricks whichv are to constitute a row ofv bricks to form the row of bricks in 'the roadway are positioned upon .the receiving platform or rollers, the camY pin 91 ac-tuates suitable mechanism shown in detail in the aforesaid figures to move all of the bricks into abutting relation and elimina-te theslack or Vspaces therebetween. Itk will be understood that the machine is by-lateral in its arrangement, and therefore,lthe pushes or shores imparted by the mechanism to be' dcscribedv in detail are in opposite directions and towards each other so as to entirely remove all of the slack inthe row of bricks when positioned upon the receiving' platforni.r

Themechanism consists of a roller 92 carried upon a lateral projection 93 of an adjustably supported arm 94 carricdby a rock shaft 95 suitably supported upon the fra-me.`

The rock shaft 95 also carries a counterweight 96 which is adjustably secured to a counterweight arm 97 supported by said shaft. There is suitably supported a brick engaging roller 93 carried by a lateral projectio-n'of an adjustably supported finger 99. The adji'istably supported finger 99 is pivotally supported upon a stub shaft or spindle 100, and associated therewith is a collar 101 carryingl an arm 102 which is connected by a link 103 to an arm 104; of a collar 105 mounted upon and rigidV with the rock vshaft 5. yieldinoly connected together by meansof a coiied spring; 106. From the foregoing; t will be understood that as the cam pin 91 engages the cam roller 92, the rock shaft 95 will be tilted, and the tilting` motion thereof through the link construction hereinbefore descrised rocks the collar 10.1 on the spindle 'i 00. Said rocking movement is communicated througlithe spring 106 to the brick engagiug roller or bumper 98, and thus push or shove is imparted to the last or adjacent brick-64 positioned upon the receiving platform. as shown in Fig. 4. After the cam pin 91has passed from beneath the cam roller 92, the counterweight 96 returns all of the aforesaid elements to their original and retracted position. 1` It will, of course, be understood thatthe roller 98 in its normal position, shown dotted in Fig'. 12 is positioned to permit the brick 64 to pass beneath the same. Subsequent engagement of the cam piu 91 with the cam roller 92 moves the brick engaging roller 9S into position. see Ff- 12, to engage the brick G4 and give thefsame a shove, as shown in 13. The aforesaid construction also provides a yielding connection between the kbrick engaging roller 98 and the cam engaging roller 92, so thata slight variation inthe row of bricks will not interfere with the aforesaid mechanism, and such variations will be absorbed or compensated for by the coiled spring or yielding connection 106.

Lateral .pressure apply/ng mechanism (md mac/'rac moomg mechmizsm.

eference willnow be had to Fig. 1 for the general plan view of the lateral pressure applying mechanism, and to Figs. 4 to 9 inclusiveto showthe details of construction and the several positions assumed thereby. Theshaft e2 it will be remembered carries The collar 101 and the finger 99 are` alii l 'the wheel i7 which is driven by the belt or chain 45, in turn driven by the wheel l46 carried bythemain shaft 40. At'suitable intervals the shaft 42 is provided with a Vcrank arm 107 which carries a cam pin 108 which supports a roller if desired. Asslide 109 slotted at 110 to slide uponY the shaft 42 carries a downwardly extending cam pro- ]ection 111 and an upwardly extending cam pronaction 112, the former being an interior cam and the other being an 'exterior cam. The slide 109 adjustably supports a slidable rod 118, the other end of which is secured to an otlset supporting member 114 which carries a transversely extending pressure bar 153 the bottom edge of which maybe curver "to the crown oit the road. Fig'. 4 illustrates what may be turned the iirst position o'l the lateral pressure applying mechanism. In this position the pin 108 engages the interior cam 111 and moves the slottedslide 102 with the rod 1li?, and presser bar 115 .rearwardly from the position shown in Fig. 4to the position shown in Figi'. 9 to apply lateral pressure to the brick ($4- which has been de- Jposited by the transporting' means hereinbetore described. Continued movement from the position. shown in Fig. 4 to the position showi in Fig. 9 applies lateral pressure to said brick and ft'orces the same against the oricl-r Vin the adjacent row. Thereupon con rinned rotational movement of the crank arm 10? causes the pin 108 to engage the e1:- teriorca'm 112 to retract the presser bar oonstruction, ag shown in Fig'. 6. The rotationnl movement from Fig. 6 to Figs. 7 and 8 ronstitutes the idle portion of the cycle of 'the presser bar operation, and it is during `this period, see the same figures, that the presser bar is maintained in the retracted position to permit the transporting lingers to deposit a brick upon the road-bed.

lt will be understood Jfrom the atoresai-t` figures that as the presser bar is-projected rearwardly into engagement lwith the row ot bricks to exert lateral pressurev thereon, the machine is moved 'forwardly .through such lateral pressure assisted by the weight o't the bricks upon the transporting* mechanisni, said weight being` transmitted tlirougi'h the lables 82 to the main shat't 4.0, as in the positions shown .in Figs. and 9.

There is also supported uponthe trame ot the machine a plurality otrollerslli, and these rollers are preferably-adjustably supported upon said machine so as to pro duce the true crown curve determined or desired 'to be imparted to the roadway. yIhus the mechanisms ot' the machine are so timed in their operation that lateral pressure is simultaneously applied to the bricks, such lateral 'pressurebeing assisted by the weight otanother row of bricks. and simultaneously therewithvthe machine moved forwardly by the action of the aforesaid cam construction. Such movement carries with it the rollers 116 to exert downward pressure upon the bricks and position the same in crowned relation to form a crowned roadway. y

The means for maintaining` the machine stationary during the desired periods otl operation and permitting the same to be Vmoved during another period of operation is shown clearly in Figs. 4 to 9 inclusive. y `Slidably supported in a bracket 117 upon the channel frame 24 is a brake rod 118 which carries a brake shoe 119. The brake rod 118 is provid-ed with a collar 12() by which the tension ot the spring 121 is adjusted. Said spring tends to maintain the shoe 119 in engagement with the wheel 25. The brake rod 118 terminates in an angular construction 122 adjustably supported lby said terminating ends. Said angular construction `carries a collar pin or roller 1223 and the shaft 42 carries a cam 124 having; the raised cam portion 125 which is adapted to engage the pin 123y to retract the brake rod in opposition to the springl 121, and releases the brake shoe 119 from eng-agement with the wheel r[hus it will be noted that the brakes are released, see Figs. 5 and 9, during' the time that the cam pin 108 is in engagement with the interior cam 111, to exert lateral pressure upon therow ot bricks upon the road-bed.

connected to a leveling); construction 128, see Figs. 2 and 4. YSaid leveling` construction7 as shown clearlyin the iirst mentioned ligure,

is curved and isadapted to level the cushion layer 19 upon the road-bed 21, thereby pro- `riding,- a true crowned cushioned road-bed.

Also supported upon the 'framework are the hoppers 1.80, and said hoppers are conneeted by means of the flexible conduit connections 1.81 to a drum or tubular construo tion 15:32 which herein is illustrated as supported by the same mechanism which supiorts the presser bar 11.5, Said tubular nien'iber 182 is i'uovided with suitable 'discharge means such as a longitudinally extending aperture or a Vplurality of apertures 282 see F ig. 4. Positionedwithin the tubular member 132 is a pair ot oppositely work'- ing` screws 133 which moves the material `from the outer ends of the tubular member towards the center, and simultaneously forces the same from the discharge apertures. v

The aperture 232 iscontrolled by a closure lplurality of supporting rods 127 which are from the mais .shaft 40,15@ E member 283 which is provided with a plurality of forwardly extending;` rods L34. The. forwardly extending rods are provided with an angular extension 235, which angular extension portion is slidably supported in a pivotally supported bearino' 286. The bearing* 23,6 is supported upon the Irame by the depending arm 237. Suitable stops are associated withthe angular extension 235, `and the rod portion 2234,such as the adjustably positioned collars 2.38 and 239. In the forward movement or" the ypresser bar 115 and the tubular member 132 the collar 23S engages the bearing 236 and moves the closure member 233 into open position. Thereafter upon the return `or yitorward n'iovementot the machine as a unit, the screw conveyor is adapted to discharge the cementitiousor binding material through the aperture Vfhen the machine has be-` come stationary and the'presser bar 11.5 and tubular member have been retracted, the stop 239 engages the pivotal support and serves to more the closure member into closing,` position such that inthe Jforward movement of the presser Abar and tubular member, the latter will not be permitted to discharge cementitious material upon the roadway. 1t will, of course, beunderstood that the tubular member may lie made to conformA to the curvature ot the roadway it' the same is excessive.k This may be readily accomplished by dividing` the tubular member in the middle and adjustably snpporting the ends of each et the sections.

The means for actuating` the screw cor.- veyors within the tubular member 112 comprises a sprocket gear 134,v see 3, drii-*en by a sprocket chain 135, which sprocket chain is supported by an idler pulley rotatably supported upon a pivotally supported arm 137, which arm adiustably sup ports a counterweight 138. The chain is driven by a sprocket irear 139 ril id with a shatt 140. A pulley 141 also interposed in the chain construction. rFrom the Ytore- ;roingr it will be understood that as the 1Dresser liar 115 carrying' ythe tubular member 132 therewith is moved forwardly, the piro-ted arm 13T mores downwardly to permit such movement, and simultaneously permits the chain to drive the screw conveyor 133 within. said :tubular member 133. The power Vfor c`ii'imiiigv the sprocket pinion is the supporting shaft 140 which teu min-stes in a bevel g ar 141 which is .driven lj," a similarly indicated meshing lil-Wel gear upon the upper end oif ,the shaft To. It will he remembered that the shaft 'To carries the sprocket pinion ,71, see ll" l, which driven by the chain in `rn driven Viw the sprocket wheel GS) which derives power through the vertical shaft 4t Itfwill,

oil course, be apparent Vthat the aforesaid operations voccur in timed relation as hereiubefore described. u i

Reference will now be had to Figs. l`v 3 and 4. Positioned rearwardly of the rollers 116 is another transversely extending); tubular member 142 which is suitably4 or similarly apertured at 143. Associated with said aperture is a control member144 therefor. which is provided with. a dependin plat;` portion 145 which `constitutes a spreader orv leveler. lithin the tubular member 142 is a sere f' conveyor 146 supported upon shaft or spindle 147. he shaft or spindle 147 carries a bevel gear 148 which meshes with another bevel gear 149 carried upon the sr-.aft 43, which, it will be re- -membered, derives its power through the .bevel `.Q'ear 48 and auxiliary shaft 42 from y main shaft 40.

VYThe tubular member 142 is connected with the hoppers 130 by suitable 'flexible It will. ot course, be remembered that thc depending portion 145 in the forward more ment of the machine isadapted to distribute the surfacing material afterthc same has been-deposited upon the bricks. The tubular .const-rue ion described mayliltewise be parted through the central portion to perkmit adiustmentto the desired crown of the road, and from the foregoing; it will also beunderstood that within the tubular 'construction 142, there ispositimA d apair ot oppositely extending' screws 1% llpon the rear end ot the machine pr 4iitioned a moistening conduit 151. which ijlischarurs upon the depending moisteniurj pad yor apron 152`whieh v. ts the roadway atteithe tubular inemberj142 has .flischargl'rd *surfacing -niaterial upon the top ot the bri` lis which have been laid` It will. of course, be understood that the tubular mear ber 132 discharges u suitable landing' mate rial upon the c shion layer 151. y

Yiliile the invention has been described in ,irreali detail in the aforesaid specifications andsome modifications ha been sigxfgestcifl. it will be understood thav all ot he atorr Lava-18s ranged in spaced relation about and along;

said shaft for removing a plurality orn bricks from the platform and depositing the saine in rtandem and row Jorming' relation and into position for engagement by said endless conveyor brick engaging lateral projections.

2. ln a machine jfor laying bricks or the like iior forming road or the like surfaces, the combination of a supporting' framework, a slotted platform supported by said rannework,4 a spider construction includingr` a supporting' shalt and a plurality of laterally projecting' brick engaging meinbers arranged in spaced relation about and along said shaft and movable through the slots of the platform, and a plurality oli rollers adjacent the platform and sup-- ported by said frainenf'ork in parallel relation to said lateral projections, said spider projections being. movable between said rollers. i y

53. ln a machine for laying' bricks or the .like Ytor lorming` road or the like surfaces, the combination of' a supporting` 'framework, a slotted platform.' supported by said il'raniework, a spider construction includinga supporting' shaft and a plurality of laterally projecting brick engaging members arranged in spa-ced relation about and alone' said shaft and movable through the slots of the platform, a plurality ot rollers adjacent the platform and supported by said framework in parallel relation to said lateral projections, said spider projections being movable between said rollers, and a brick engaging' conveyor positioned adja.

cent said'rollers and adapted to engage the brick when deposited thereon b v said spider construction 'tor conveyineA said brick 'from the rollers.

l. lin a machine Vfor laying" bricks or the .like for 'Forming' road or rlike surfaces, the combination oit a pair oit' brick supplying means, a ipceivinn device interposed therebetween ttor receiving bricks from said brick supplying means and in opposite directions and means t'or transporting the brick Ytrom the brick receiving device to a road-bed.

5. In a machine for laying' bricks or the like 1Cor forming road or like surfaces, the combination of a pair of brick vsupplying means, a receiving device interposed therebetween for receiving bricks from said brick supplying means and in opposite directions, means for transporting` the brick from the brick receiving device to a road-bed, and a pair of mechanisms adjacent the ends of the brick receiving' device tor imparting' additional movement to the bricks and in opposite directions to eliminate the slack therebetween.

6. in a machine for laying bricks or the like for formingroad or like surfaces, the combination of a brick receiving` inech anism, an endless brick conveyor, and means operable by said endless brick conveyor for causing relative movement between said conveyor and the brick to eliminate slack between the brick,

7. In a brick laying machine, the combination of a brick receiving mechanism, a brick supplying` mechanism, and a slack arrester mechanism for eliminating slack among the brick upon the ii'rst mentioned mechanism, comprising engaging member, means for tilting; said rock shaft, a connection` between. said rock shatt and said brick engaging` member, and means for returning the brick engaging member to the non-engaging position.

8. In a brick laying machine, the comn bination of a brick receiving mechanism, a brick supplying` mechanism and a slack arrester mechanism.operable by the second mentioned mechanism for eliminating; slack among the brick upon the 'tiret mentioned mechanism, comprising a rock shalt, brick engaging' member, means for tilting' said rock shaft and operable by said brick supplying means, va yielding' connection between said rock shait and said brick engaging member, and means for returning` the brick engaging' member tothe non-engaging" position when released by the brick supplying means.

9. ln a brick laying' machine, the coinl'iination oli' a brick receiving mechanism, a brick supplying mechanisn'i, and a slack arrester mechanisin operable by the second mentioned mechanism tor eliminatingslack :unong' the brick upon the i'irst niei'itioned mechanism, comprising' a rock shalt, a br engaging n'ieinber, means 'lior tilting said rock shaft and operable by said. brick sunplyinp; means, a connection liietn'ecn said rock shaft and said brick engaging member to the non-engakrrino` position when released by the brick supplying` means.

ill. lin a machine 'for laying brick or the like for 'iiorn'iingr road or like surfaces, the

combination ot a brick supporting' platform provided with a plurality of slots therein,v brick receiving means adjacent said plati'orm, land a rotatable spider construction with its arms movable in the slots of the A n j,

platform `Ier transferring a ron7 of bricks a rock shaft` a brick from the platform toy the bi'ick receiving means in tandem i'elation. Y

11. A machine for laying brick or the like for forming road or like surfaces including' a pair orp means each arranged to 'furnish a rev.' of brick in tandem relation,

a brick receiving; means having opposite ends formed for receiving siinult-aneously and from opposed dii'ections from said first mentioned means the tandem arran'red brick 'for 'forming' a single slackless' varranged rer.' et bi'ick when the brick in each reiv abut cach other.

12. A machine for laying'brick or the like lor forming road or like surfaces, includingl a plurality of brick supplying means, a common brick receiving means for receiving bricks from said brick supplying means and Vtrom opposite directions and in tandem relation for 'forming a single row of brick, and a. single transferring' mechanism tor removing the roiv of brick Yfrom the common brick receiving' ineens and transporting the saine to a road bed.

13. 1n a machine for laying brick or the like 'for forming road or like surfaces, the combination with a brick receiving' mechanism, a brick conveyor 'for supplying' brick in tandem relation, and means operable in timed relation ivitb said `brick conveyor for imparting' additional movement to the bricks Whilev upon the receiving; mechanism to eliminate the lateral slack between the saine prior to discharge.`

1l, lin a brick laying machine the coin-4 binai'ion of a receiving mechanism for rceeivine' lbrick iii tandem or row-formation, and a slack arresting' mechanism for s riking the end brick upon the brick receiving` mechanism toi' eliminating the lateral slack among; all the brick therein.

1 5. A machine for laying` brick or the like in i'oivs for termine; a surface including means for conveying' and laying the brick or tlie like in rens means for depositing a coating' ott material tor the reception ot said brick, and means controlling said depositingr means to permit the same to deposit said material only prior to the. actuation oi' the laying' means.

16. ln a brick laying; machine, llie combinetioniiitli a brick s .pplyingVL mechanism, a brick receiving mechanism, and a slack ai'- i'estei' mechanism operable by tlic first nicntioned mechanism toi' striking abi'ick and eliminating lateral slack among tlie brick upon said sec-0nd mentioned mechanism.V

17. In a machine toi' laying brick 'or tbe like for formingr a road or like surface, the combination of brick receiving ineaiis,ineans including a moi-'able brick support for engaging' the side and face oi' said brick to elevate the same from the receiving` means and move said brick to clear the saine, and thereafter position said. .brick beneath the -i'eceiv- 'navegasv ing means in substantially the saine position prior to positioning' in surface-forming' position upon the roadway.

1S. In a machine for laying brick oi' the like for forming reader like surfaces, tlie combination or brick receiving means` means including' a movable brick support tor engaging the side and face ot said brick to ele- 'vate the same 'from the receivingl means and "the pressure directing` m'eans in the application oi lateral pressure to said brick just laid.

Q0. ln a machine for laying vbrick or tlie like to form surface, the combination 'ot brick receiving' means.y tiltable and movable means 'for engaging said brick to elevate thel same from the receiving means and move said brick to clear the same and thereafter lay said brick beneath the receiving' means in surface-'foriiiiiig' position, and means for engagine'vsaid brick engaging means to tilt the same to turn and deposit said brick.

21. A machine tor laying' brick 0i' the like l'oi' forming surfaces including' a moifable framer structure, continuously operable means for conveying and intermittently laying the brick, means adapted to press laterally against the brick when laid to torni a surface and simultaneously moving said frame structure forwardly, the Weight et the brick next to be laid and the conveyor means therefor assisting the pressure directing means in the application oit lateral pressure to the brick just laid.

22. A machine for laying' brick or the like :tor forming' surfaces including' a. traine structure, supporting' ivliee s 'li'oi' said 'trame structure, means adapted to press against the brick when laid to forni a surl'ace ici' properly placing; the brick and simultaneously moving' said iframe structure forwardly, and brake means associated with said supporting' Wheels normally maintiiiniiig,r said wbt-els in non-rotatable relation and i'cleasable ivlien said pressure means is applying pressure to the brick.

23; A machine 'for laying brick oi' llie like 'for Vforming surfaces including a traine structure, continuously operable brick engaging,'transporting and laying means, supporting' Wheels for said frame structure, brake ,I neans -'Or said wheels, and means'or exerting lateral pressure against the brick when laid to form a surface and assisted by Jdie weight of the bricks engaged by the brick engaging means and for simultaneously moving said frame structure forwardly upon the release of the brake means during the application of lateral pressure.

24. A machine for forming a road or like surface including means 'for supplying brick 10 to the machine to lay the same in rows with broken joints, means for removing the lateral slack between said bricks, means for laying said brick upon a road-bed in slackness and row formation, and means for exerting pressure upon said brick to embed the same in road and surface-forming position.

In witness whereof, I have hereunto affixed my signature.

MELVIN E. CROVVELL. 

